The KISS Experiment

Fasano, A., Aguiar, M., Benoit, A., Bideaud, A., Bourrion, O., Calvo, M., Catalano, A., De Taoro, A. P., Garde, G., Gómez, A., Renasco, M. F. G., Goupy, J., Hoarau, C., Hoyland, R., Macías Pérez, J. F., Marpaud, J., Monfardini, A., Pisano, G., Ponthieu, N., Martín, J. A. R., Tourres, D., Tucker, C., Beelen, A., Bres, G., De Petris, M., De Bernardis, G., Lagache, G., Masi, S., Rebolo, R., Roudlier, S. (2020). The KISS Experiment. Journal of Low Temperature Physics 199. 1-2, 529-536 DOI: 10.1007/s10909-019-02289-1

Mapping millimetre continuum emission has become a key issue in modern multi-wavelength astrophysics. In particular, spectrum imaging at low-frequency resolution is an asset for characterising the clusters of galaxies via the Sunyaev-Zel’dovich effect. In this context, we have built a ground-based spectrum-imager named KIDs Interferometer Spectrum Survey (KISS). This instrument is based on two 316-pixel arrays of Kinetic Inductance Detectors (KID) cooled to 150 mK by a custom dilution refrigerator-based cryostat. By using Ti-Al and Al absorbers, we can cover a wide frequency range between 80 and 300 GHz. In order to preserve a large instantaneous field of view similar to 1 circle the spectrometer is based on a Fourier transform interferometer. This represents a technological challenge due to the fast scanning speed that is needed to overcome the effects of background atmospheric fluctuations. KISS is installed at the QUIJOTE 2.25 m telescope in Tenerife since February 2019 and is currently in its commissioning phase. In this report, we present an overview of the instrument and the latest results.

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